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Twenty white recessed magnetic contact switches with 18 inch wire leads

The Wires Zone

The Wires Zone Recessed White Door Window Alarm Switch 20 pk 3/8

SKU CH-3R3R-RHCXQ

Twenty recessed magnetic switches with eighteen-inch leads secure tight-fitting frames without drilling

  • TypeOther
  • Fits tight frames without drilling a magnet hole
  • 3/8 inch diameter suits narrow window and door recesses
  • 22 AWG leads with 18 inch length simplify wiring runs
  • Normally closed contact opens when magnet separates for reliable detection
  • Pack of 20 switches covers multiple entry points in one purchase

Compact 3/8" Recessed Switches

The Wires Zone recessed white door and window alarm switches come in a pack of twenty for whole-home security projects. Each unit fits into tight frames where drilling a hole for the magnet is impractical. Installers and DIY owners gain a low-profile contact that sits flush with the trim.

5/8" Gap Limit and 18" Leads

The reed contact stays closed until the magnet moves beyond the recommended 5/8" gap, giving reliable detection on standard doors and windows. Twenty-two AWG wire leads measure eighteen inches, reaching nearby control panels without extra splicing. The magnet measures three-eighths by one-eighth by three-eighths inches.

Normally-Closed Circuit Constraint

The contact ships in a normally-closed state and opens only when the magnet separates, so the alarm panel must monitor for an open circuit. Builders who need normally-open logic or wireless transmission cannot use these switches without additional circuitry. The eleven by nineteen by eleven millimetre contact body also limits retrofit space.

Highlights

  • Fits tight frames without drilling a magnet hole
  • 3/8 inch diameter suits narrow window and door recesses
  • 22 AWG leads with 18 inch length simplify wiring runs
  • Normally closed contact opens when magnet separates for reliable detection
  • Pack of 20 switches covers multiple entry points in one purchase

Specifications

TypeOther

Questions about this item

Will the 3/8 inch recessed switch and its magnet fit alongside the existing 22 AWG wiring in my older alarm panel?

Yes, each contact includes an 18 inch 22 AWG lead, matching the gauge commonly found on legacy panels, so the new switches connect directly without adapters.

How can I verify the normally-closed circuit is operating correctly once the switches are installed?

With the magnet in place the circuit stays closed; open the door or window and a multimeter will show the contact opening, confirming the reed switch is working as intended.

Does the 20 pack include mounting hardware or do I need to buy screws and magnets separately?

The package contains twenty complete sets — each with a recessed contact and its matching magnet — so no extra magnets or fasteners are required for installation.

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